How severe is CVE-2020-9091?

CVE-2020-9091 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-9091 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9091?

CVE-2020-9091 affects Huawei Taurus-an00b Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9091?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-9091 published?

CVE-2020-9091 was published on 2020-10-12 and last updated on 2026-06-17.

CVE-2020-9091

CVE-2020-9091 is a medium-severity vulnerability in Huawei Taurus-an00b Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Huawei Taurus-an00b Firmware
Published: 2020-10-12
Last modified: 2026-06-17

Description

Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have an out-of-bounds read and write vulnerability. Some functions do not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific request. This could compromise normal service of the affected device.

Frequently asked questions

What is CVE-2020-9091?: Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have an out-of-bounds read and write vulnerability. Some functions do not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific request. This could compromise normal service of the affected device.
How severe is CVE-2020-9091?: CVE-2020-9091 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-9091 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9091?: CVE-2020-9091 affects Huawei Taurus-an00b Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9091?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9091 published?: CVE-2020-9091 was published on 2020-10-12 and last updated on 2026-06-17.

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200930-03-smartphone-en

Affected products (1)

cpe:2.3:o:huawei:taurus-an00b_firmware:10.1.0.156\(c00e155r7p2\):*:*:*:*:*:*:*

More vulnerabilities in Huawei Taurus-an00b Firmware

CVE-2020-9112 — High (CVSS 7.8): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a privilege elevation vulnerability. Due to lack of…
CVE-2020-9105 — Medium (CVSS 6.7): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have an insufficient input validation vulnerability. Due to…
CVE-2020-9238 — Medium (CVSS 6.5): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module…
CVE-2020-9084 — Medium (CVSS 6.5): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a use-after-free (UAF) vulnerability. An authenticated,…
CVE-2020-9240 — Medium (CVSS 5.5): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module…
CVE-2020-9110 — Medium (CVSS 4.6): Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have an information disclosure vulnerability. The device…

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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